The GearWrench 3Pc Locking Quick Release Drive Adapter Set includes adapters in 1/4”, 3/8”, and 1/2” sizes, designed for easy and convenient use with various drive sizes. Made by GearWrench, a reputable brand, the adapters are manufactured in Taiwan and come with the manufacturer part number EHT 9230. These locking quick release adapters provide a secure connection for smooth and efficient operation, making them a valuable addition to any automotive tool collection.